Swift provides several performance optimizations, and it supports dynamic libraries, which are pieces of code that can be linked to an app. This means less memory is used, and as a result, the performance of apps developed in Swift is enhanced.
Swiftβs syntax and language constructions exclude the possibilities of many errors seen in Objective-C, enhancing stability and predictability. This includes null pointers and other unsafe behaviors that can lead to app crashes.
Swiftβs concise syntax enables developers to write less code to achieve the same tasks as Objective-C. Fewer lines of code lead to quicker development, reduced potential for bugs, and simplified maintenance. This efficiency significantly lowers the overall iOS app development cost by streamlining the development process.
Since Swift is open source, a broad community of developers contributes to its continuous improvement. Being open-source also means having a vast support ecosystem and many third-party tools and libraries to help accelerate development.